PostgreSQL 12 High Availability Cookbook - Third Edition

How it works...

While this is straightforward, it's highly time-consuming. The number of server variants available, even from a single vendor, can be staggering. This is one of the reasons we only consider 1U and 2U servers. The other reason is that 4U servers and larger are often designed for different use patterns related to vertical scaling, incorporating more CPUs, hard drives, and even multiple concurrent motherboards.

That is generally excessive for our purposes. When purchasing servers with the explicit intention to obtain multiple, redundant, and compatible examples, this becomes more difficult as the cost and complexity of the servers increase.

Although we have reduced our sample size, there is still more work to do. We can answer ...